KR20220103991A - Personal Care Compositions Comprising Multi-Level Polymers - Google Patents

Abstract

There is provided a personal care formulation having a multistage polymer comprising (a) structural units of a monomer selected from C _1-22 alkyl (meth)acrylates and structural units of a first carbosiloxane monomer of formula (I). acrylate enrichment step; and (b) a carbosiloxane enrichment step comprising structural units of a second carbosiloxane monomer of formula (I), wherein a is 0 to 3; d is 0 or 1; R ¹ is selected from hydrogen, a C _1-10 alkyl group, and an aryl group; R ² is selected from hydrogen and a C _1-10 alkyl group; R ⁸ is a group —O—Si(CH ₃ ) ₃ ; Y is selected from formulas (II), (III), and (IV); R ⁴ and R ⁶ are selected from hydrogen and a methyl group; R ³ and R ⁵ are C _1-10 alkylene groups; R ⁷ is a C _1-10 alkyl group; b is 0 to 4, c is 0 or 1; The first and second carbosiloxane monomers of formula (I) are the same or different.

Description

Personal Care Compositions Comprising Multi-Level Polymers

The present invention relates to personal care formulations. In particular, the present invention relates to personal care formulations comprising a multistage polymer, wherein the multistage polymer is (a) monoethylenically unsaturated nonionic, acrylate rich selected from C _1-22 alkyl (meth)acrylates and mixtures thereof. structural units of step monomers; and an acrylate rich stage comprising structural units of a first carbosiloxane monomer of formula (I) and (b) a carbosiloxane rich stage comprising structural units of a second carbosiloxane monomer of formula (I). (carbosiloxane rich stage), wherein a is 0 to 3; d is 0 or 1; R ¹ is selected from hydrogen, a C _1-10 alkyl group, and an aryl group; R ² is selected from hydrogen and a C _1-10 alkyl group; R ⁸ is a group —O—Si(CH ₃ ) ₃ ; Y is selected from formulas (II), (III) and (IV); R ⁴ and R ⁶ are selected from hydrogen and a methyl group; R ³ and R ⁵ are C _1-10 alkylene groups; R ⁷ is a C _1-10 alkyl group; b is 0 to 4; c is 0 or 1; The first carbosiloxane monomer of formula (I) and the second carbosiloxane monomer of formula (I) are the same or different.

Consumers increasingly desire color cosmetic formulations that provide long-lasting properties that allow them to last throughout the working day and beyond, without the need for retouching or retouching once applied. Given today's active lifestyle, providing such a long lasting color cosmetic formulation is not a simple task.

One approach to providing such cosmetic formulations is disclosed in US Pat. No. 6,060,072 by Konik et al. In U.S. Pat. No. 6,060,072, Konik et al. describe a styrene-ethylene-propylene copolymer in an amount of 5 to 10%, a combination of a PVP/eicosene copolymer and a tricontanyl PVP copolymer in an amount of 0.1 to 50%, 50 to Disclosed is a waterproof or water-resistant cosmetic composition comprising C _8-9 isoparaffins, C _9-12 aliphatic hydrocarbons, or a combination thereof in an amount of 85%.

Nevertheless, there is still a need for new color cosmetic formulations that provide effective abrasion resistance along with color retention.

The present invention provides a personal care formulation comprising a multistage polymer, wherein the multistage polymer is selected from the group consisting of (a) C _1-22 alkyl (meth)acrylates and mixtures thereof, by weight of the acrylate enrichment stage. 63 to 99.9% by weight of monoethylenically unsaturated nonionic, acrylate rich stage monomer structural units; 0.1 to 25% by weight of structural units of the first carbosiloxane monomer of formula (I), based on the weight of the acrylate enrichment step

0 to 10% by weight, based on the weight of the acrylate rich step, of monoethylenically unsaturated carboxylic acid, structural units of acrylate rich monomer; and 0 to 2% by weight, based on the weight of the acrylate enrichment step, of structural units of a multiethylenically unsaturated, acrylate rich step monomer having at least two ethylenically unsaturated groups per molecule; and (b) 0 to 90% by weight of structural units of vinyl monomer, based on the weight of the carbosiloxane enrichment stage; and 10 to 100% by weight, based on the weight of the carbosiloxane enrichment step, of structural units of a second carbosiloxane monomer of formula (I);

wherein a is 0 to 3; d is 0 or 1; each R ¹ is independently selected from the group consisting of hydrogen, a C _1-10 alkyl group, and an aryl group; each R ² is independently selected from the group consisting of hydrogen and a C _1-10 alkyl group; each R ⁸ is an —O—Si(CH ₃ ) ₃ group; Y is selected from the group consisting of formulas (II), (III), and (IV),

wherein each R ⁴ and R ⁶ is independently selected from the group consisting of hydrogen and a methyl group; each of R ³ and R ⁵ is independently a C _1-10 alkylene group; each R ⁷ is independently a C _1-10 alkyl group; b is 0 to 4, c is 0 or 1; The first carbosiloxane monomer of formula (I) and the second carbosiloxane monomer of formula (I) are the same or different.

The present invention provides a method of use comprising the steps of providing a personal care formulation of the invention and applying the personal care formulation to the skin of a mammal.

The present inventors have discovered a unique multistage polymer composition with desirable properties for use in personal care formulations, particularly color cosmetic formulations.

Unless otherwise indicated, ratios, percentages, parts, etc. are by weight.

As used herein and in the appended claims with respect to personal care formulations, the term “aesthetic characteristic” refers to visual and tactile sensory properties (e.g., smoothness, tackiness, lubricity, texture, color, clarity, opacity, uniformity). refers to

As used herein and in the appended claims, the term “structural unit” refers to a fragment of the indicated monomer in the claimed polymer; Thus, the structural units of n-butyl acrylate are exemplified below:

In the above formula, the dotted line indicates the point of attachment to the polymer backbone.

As used herein and in the appended claims, the term “(meth)acrylic acid” is intended to serve as a generic expression encompassing both acrylic acid and methacrylic acid.

As used herein and in the appended claims, the term “(meth)acrylate” is intended to serve as a generic expression encompassing both acrylates and methacrylates.

As used herein and in the appended claims, the term “cosmetically acceptable” refers to ingredients typically used for topical application to the skin, and substances that are toxic when present in amounts typically found in skin care compositions include: It is intended to emphasize that they are not to be considered as part of the present invention.

Preferably, the personal care formulation of the present invention comprises a multistage polymer (preferably a multistage emulsion polymer), wherein the multistage polymer is selected from the group consisting of (a) C _1-22 alkyl(meth)acrylates and mixtures thereof. 63 to 99.9% by weight (preferably greater than 74 to 98.49% by weight; more preferably 80.4 to 96.95% by weight; most preferably 82.17 to 94.68% by weight, based on the weight of the selected acrylate enrichment stage ) of monoethylenically unsaturated nonionic, acrylate-rich stage monomers; 0.1 to 25% by weight (preferably 1 to less than 20% by weight; more preferably 2 to 17.5% by weight, most preferably 4 to 16% by weight) based on the weight of the acrylate enrichment step Structural unit of the first carbosiloxane monomer of (I)

0 to 10 wt% (preferably 0.5 to 5 wt%; more preferably 1 to 2 wt%; most preferably 1.25 to 1.75 wt%) monoethylene based on the weight of the acrylate enrichment step Structural units of systemically unsaturated carboxylic acids, acrylate-rich stage monomers; and 0 to 2 wt% (preferably 0.01 to 1 wt%; more preferably 0.05 to 0.1 wt%; most preferably 0.07 to 0.08 wt%) molecules based on the weight of the acrylate enrichment step. containing structural units of a multiethylenically unsaturated, acrylate-rich staged monomer having at least two ethylenically unsaturated groups per sugar (preferably from 60 to 95% by weight (more preferably from 65 to 95% by weight, based on the weight of the multistage polymer) 90% by weight; even more preferably 70 to 85% by weight; most preferably 75 to 82% by weight) of an acrylate enrichment step; and (b) 0 to 90% by weight (preferably less than 10 to 50% by weight; more preferably 12.5 to 30% by weight; even more preferably 15 to 25% by weight based on the weight of the carbosiloxane enrichment step. % by weight; most preferably, from 19 to 21% by weight) of structural units of vinyl monomers; and 10 to 100% by weight (preferably greater than 50 to 90% by weight; more preferably 70 to 87.5% by weight; even more preferably 75 to 85% by weight, based on the weight of the carbosiloxane enrichment step; Most preferably, from 79 to 81% by weight) of structural units of the second carbosiloxane monomer of formula (I) (preferably from 5 to 40% by weight, based on the weight of the multistage polymer; more preferably , 10 to 35% by weight; even more preferably 15 to 30% by weight; most preferably 18 to 25% by weight) of carbosiloxane enrichment step;

wherein a is 0 to 3 (preferably 0 to 2; most preferably 1); d is 0 or 1 (preferably 0); each R ¹ is hydrogen, a C _1-10 alkyl group, and an aryl group (preferably hydrogen and a C _1-10 alkyl group; more preferably, hydrogen and a C _1-4 alkyl group; even more preferably, hydrogen and independently selected from the group consisting of a methyl group; most preferably, a methyl group; each R ² is hydrogen and a C _1-10 alkyl group (preferably hydrogen and a C _1-5 alkyl group; more preferably, hydrogen and a C _1-4 alkyl group; even more preferably, hydrogen and a methyl group; most preferably preferably independently selected from the group consisting of a methyl group); each R ⁸ is an —O—Si(CH ₃ ) ₃ group; Y is selected from the group consisting of formulas (II), (III), and (IV) (preferably (II) or (III); most preferably, (II)),

wherein each of R ⁴ and R ⁶ is independently selected from the group consisting of hydrogen and a methyl group (preferably a methyl group); Each of R ³ and R ⁵ is independently a C _1-10 alkylene group (preferably, a C _1-7 alkylene group; more preferably, a C _2-6 alkylene group; even more preferably, a C _3-5 group) an alkylene group, most preferably a C ₃ alkylene group (eg, —CH ₂ —CH ₂ —CH ₂ —); each R ⁷ is independently a C _1-10 alkyl group; b is 0 to 4; c is 0 or 1; The first carbosiloxane monomer of formula (I) and the second carbosiloxane monomer of formula (I) are the same or different (preferably, the first carbosiloxane monomer of the formula (I) and the second carbo the siloxane monomers are the same).

Preferably, the personal care formulation of the present invention comprises a multistage polymer (preferably a multistage emulsion polymer). More preferably, the personal care formulation of the present invention contains 0.1 to 10% by weight (preferably 0.5 to 7.5% by weight; more preferably, 1 to 7% by weight; even more preferably) based on the weight of the personal care formulation. preferably 3 to 6% by weight; most preferably 4 to 5% by weight of the multistage polymer (preferably the multistage emulsion polymer). Most preferably, the personal care formulation of the present invention contains 0.1 to 10% by weight (preferably 0.5 to 7.5% by weight; more preferably, 1 to 7% by weight; even more preferably) based on the weight of the personal care formulation. preferably 3 to 6% by weight; most preferably 4 to 5% by weight) of a multistage polymer (preferably a multistage emulsion polymer); The multistage polymer comprises an acrylate enrichment stage and a carbosiloxane enrichment stage (preferably an acrylate enrichment stage as a first stage and a carbosiloxane enrichment stage as a second stage).

Preferably, the multistage polymer of the present invention comprises an acrylate enrichment stage. More preferably, the multistage polymer of the present invention comprises from 60 to 95% by weight (preferably from 65 to 90% by weight; more preferably from 70 to 85% by weight; most preferably from 60 to 95% by weight, based on the weight of the multistaged polymer; 75 to 82% by weight) of an acrylate enrichment step. Most preferably, the multistage polymer of the present invention comprises 60 to 95% by weight (preferably 65 to 90% by weight; more preferably 70 to 85% by weight; most preferably, based on the weight of the multistage polymer; 75 to 82% by weight) of an acrylate enrichment stage, wherein the acrylate enrichment stage is selected from the group consisting of C _1-22 alkyl (meth)acrylates and mixtures thereof, 63 based on the weight of the acrylate enrichment stage. monoethylenically unsaturated nonionic, acrylate enriched step of from 99.9 wt% to 99.9 wt% (preferably greater than 74 to 98.49 wt%; more preferably 80.4 to 96.95 wt%; most preferably 82.17 to 94.68 wt%) structural units of monomers; 0.1 to 25% by weight (preferably 1 to less than 20% by weight; more preferably 2 to 17.5% by weight, most preferably 4 to 16% by weight) of the first carbosiloxane monomer of formula (I) structural unit of; 0 to 10 wt% (preferably 0.5 to 5 wt%; more preferably 1 to 2 wt%; most preferably 1.25 to 1.75 wt%) monoethylenic based on the weight of the acrylate enrichment step Structural units of unsaturated carboxylic acids, acrylate-rich stage monomers; and 0 to 2 wt% (preferably 0.01 to 1 wt%; more preferably 0.05 to 0.1 wt%; most preferably 0.07 to 0.08 wt%) molecules based on the weight of the acrylate enrichment step. a structural unit of a polyethylenically unsaturated, acrylate-rich stage monomer having at least two ethylenically unsaturated groups.

Preferably, the acrylate enrichment stage comprises 63 to 99.9% by weight (preferably greater than 74 to 98.49% by weight; more preferably, 80.4 to 96.95% by weight; most preferably) based on the weight of the acrylate enrichment stage. , 82.17 to 94.68% by weight) of monoethylenically unsaturated nonionic, acrylate rich stage monomers; The monoethylenically unsaturated nonionic, acrylate rich stage monomer is selected from the group consisting of C _1-22 alkyl (meth)acrylates and mixtures thereof. More preferably, the acrylate enrichment stage comprises 63 to 99.9% by weight (preferably greater than 74 to 98.49% by weight; more preferably, 80.4 to 96.95% by weight; most preferably, based on the weight of the acrylate enrichment stage) contains 82.17 to 94.68 wt %) of structural units of monoethylenically unsaturated nonionic, acrylate-rich stage monomers; The monoethylenically unsaturated nonionic, acrylate rich stage monomer is selected from the group consisting of a mixture of at least two C _1-8 alkyl (meth)acrylates. Even more preferably, the acrylate enrichment stage comprises 63 to 99.9% by weight (preferably greater than 74 to 98.49% by weight; more preferably, 80.4 to 96.95% by weight; most preferred) based on the weight of the acrylate enrichment stage. preferably 82.17 to 94.68 wt. %) of monoethylenically unsaturated nonionic, acrylate rich stage monomers; The monoethylenically unsaturated nonionic, acrylate rich stage monomer is selected from the group consisting of a mixture of at least two C _1-4 alkyl (meth)acrylates. Even more preferably, the acrylate enrichment stage comprises 63 to 99.9% by weight (preferably greater than 74 to 98.49% by weight; more preferably, 80.4 to 96.95% by weight; most preferred) based on the weight of the acrylate enrichment stage. preferably 82.17 to 94.68 wt. %) of monoethylenically unsaturated nonionic, acrylate rich stage monomers; The monoethylenically unsaturated nonionic, acrylate rich stage monomer is selected from the group consisting of a mixture of at least three C _1-4 alkyl (meth)acrylates. Most preferably, the acrylate enrichment stage comprises 63 to 99.9% by weight (preferably greater than 74 to 98.49% by weight; more preferably, 80.4 to 96.95% by weight; most preferably, based on the weight of the acrylate enrichment stage) contains 82.17 to 94.68 wt %) of structural units of monoethylenically unsaturated nonionic, acrylate-rich stage monomers; the monoethylenically unsaturated nonionic, acrylate rich stage monomer is selected from the group consisting of a mixture of at least three C _1-4 alkyl (meth)acrylates; The mixture includes butyl acrylate, butyl methacrylate and methyl methacrylate.

Preferably, the acrylate enrichment step comprises 0.1 to 25 wt% (preferably 1 to less than 20 wt%; more preferably 2 to 17.5 wt%, most preferably 2 to 17.5 wt%, based on the weight of the acrylate enrichment step) , 4 to 16% by weight) of a first carbosiloxane monomer of formula (I). More preferably, the acrylate enrichment step comprises 0.1 to 25% by weight (preferably 1 to less than 20% by weight; more preferably 2 to 17.5% by weight, most preferably) based on the weight of the acrylate enriching step. comprises 4 to 16% by weight of the first carbosiloxane monomer of formula (I), wherein a is 0 to 3 (preferably 0 to 2; more preferably 1); d is 0 or 1 (preferably 0); each R ¹ is hydrogen, a C _1-10 alkyl group, and an aryl group (preferably hydrogen and a C _1-10 alkyl group; more preferably, hydrogen and a C _1-4 alkyl group; even more preferably, hydrogen and independently selected from the group consisting of a methyl group; most preferably, a methyl group; each R ² is hydrogen and a C _1-10 alkyl group (preferably hydrogen and a C _1-5 alkyl group; more preferably, hydrogen and a C _1-4 alkyl group; even more preferably, hydrogen and a methyl group; most preferably preferably independently selected from the group consisting of a methyl group); each R ⁸ is an —O—Si(CH ₃ ) ₃ group; Y is selected from the group consisting of formulas (II), (III), and (IV) (preferably (II) or (III); more preferably, (II)); each of R ⁴ and R ⁶ is independently selected from the group consisting of hydrogen and a methyl group (preferably a methyl group); Each of R ³ and R ⁵ is independently a C _1-10 alkylene group (preferably, a C _1-7 alkylene group; more preferably, a C _2-6 alkylene group; even more preferably, a C _3-5 group) an alkylene group, most preferably a C ₃ alkylene group (eg, —CH ₂ —CH ₂ —CH ₂ —); each R ⁷ is independently a C _1-10 alkyl group; b is 0 to 4, and c is 0 or 1. Most preferably, the carbosiloxane enrichment step comprises 0.1 to 25% by weight (preferably 1 to less than 20% by weight; more preferably 2 to 17.5% by weight, most preferably) based on the weight of the acrylate enriching step. is 4 to 16% by weight) of the structural unit of the first carbosiloxane monomer of formula (I), wherein a is 1; d is 0; each R ¹ is a methyl group; each R ² is a methyl group; Y is formula (II); each R ³ is a C _3-5 alkylene group; each R ⁴ is a methyl group.

Preferably, the acrylate enrichment step comprises 0 to 10 wt% (preferably 0.5 to 5 wt%; more preferably 0.75 to 2.5 wt%; even more preferably 0 to 10 wt%, based on the weight of the acrylate enrichment step , 1-2% by weight; most preferably 1.25-1.75% by weight) of structural units of monoethylenically unsaturated carboxylic acid, acrylate-rich stage monomers. More preferably, the acrylate enrichment step comprises 0 to 10% by weight (preferably 0.5 to 5% by weight; more preferably, 0.75 to 2.5% by weight; even more preferably) based on the weight of the acrylate enriching step. contains 1 to 2 wt%; most preferably 1.25 to 1.75 wt%) of structural units of monoethylenically unsaturated carboxylic acid, acrylate-rich stage monomer; Monoethylenically unsaturated carboxylic acid, acrylate rich step monomers are (meth)acrylic acid, (meth)acryloxypropionic acid, itaconic acid, aconitic acid, maleic acid, maleic anhydride, fumaric acid, crotonic acid, citraconic acid, maleic anhydride , monomethyl maleate, monomethyl fumarate, monomethyl itaconate, other derivatives (eg, corresponding anhydrides, amides and esters), and mixtures thereof. Even more preferably, the acrylate enrichment step comprises 0 to 10% by weight (preferably 0.5 to 5% by weight; more preferably, 0.75 to 2.5% by weight; even more preferably) based on the weight of the acrylate enriching step. preferably 1 to 2% by weight; most preferably 1.25 to 1.75% by weight) of structural units of monoethylenically unsaturated carboxylic acid, acrylate-rich stage monomers; The monoethylenically unsaturated carboxylic acid, acrylate rich stage monomer is selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, crotonic acid, and mixtures thereof. Even more preferably, the acrylate enrichment step comprises 0 to 10% by weight (preferably 0.5 to 5% by weight; more preferably, 0.75 to 2.5% by weight; even more preferably) based on the weight of the acrylate enriching step. preferably 1 to 2% by weight; most preferably 1.25 to 1.75% by weight) of structural units of monoethylenically unsaturated carboxylic acid, acrylate-rich stage monomers; The monoethylenically unsaturated carboxylic acid, acrylate rich stage monomer is selected from the group consisting of at least one of acrylic acid and methacrylic acid. Most preferably, the acrylate enrichment step comprises 0 to 10% by weight (preferably 0.5 to 5% by weight; more preferably, 0.75 to 2.5% by weight; even more preferably) based on the weight of the acrylate enriching step. contains 1 to 2 wt%; most preferably 1.25 to 1.75 wt%) of structural units of monoethylenically unsaturated carboxylic acid, acrylate-rich stage monomer; Monoethylenically unsaturated carboxylic acid, the acrylate rich step monomer is methacrylic acid.

Preferably, the acrylate enrichment step comprises 0 to 2 wt% (preferably 0.01 to 1 wt%; more preferably 0.05 to 0.1 wt%; most preferably: 0.07 to 0.08% by weight) of structural units of a multiethylenically unsaturated, acrylate rich stage monomer having at least two ethylenically unsaturated groups per molecule. More preferably, the acrylate enrichment step comprises 0 to 2 wt% (preferably 0.01 to 1 wt%; more preferably 0.05 to 0.1 wt%; most preferably 0 to 2 wt%, based on the weight of the acrylate enrichment step) , 0.07 to 0.08% by weight) of structural units of a multiethylenically unsaturated, acrylate rich stage monomer having at least two ethylenically unsaturated groups per molecule; Multiethylenically unsaturated monomers having at least two ethylenically unsaturated groups per molecule include divinylaromatic compounds, di-(meth)acrylate esters, tri-(meth)acrylate esters, tetra-(methacrylate)esters, di- allyl ether, tri-allyl ether, tetra-allyl ether, di-allyl ester, tri-allyl ester, tetra-allyl ester, allyl (meth)acrylate and mixtures thereof. Even more preferably, the acrylate enrichment step comprises 0 to 2% by weight (preferably 0.01 to 1% by weight; more preferably, 0.05 to 0.1% by weight; most preferably) based on the weight of the acrylate enriching step. comprises 0.07 to 0.08 wt %) of structural units of a multiethylenically unsaturated, acrylate rich stage monomer having at least two ethylenically unsaturated groups per molecule; Multiethylenically unsaturated monomers having at least two ethylenically unsaturated groups per molecule include divinylbenzene (DVB), trimethylolpropane diallyl ether, tetra-allyl pentaerythritol, triallyl pentaerythritol, diallyl pentaerythritol, di Allyl phthalate, diallyl maleate, triallyl cyanurate, bisphenol A diallyl ether, allyl sucrose, methylene bisacrylamide, trimethylolpropane triacrylate, allyl methacrylate (ALMA), ethylene glycol dimethacrylate ( EGDMA), hexane-1,6-diol diacrylate (HDDA), butylene glycol dimethacrylate (BGDMA) and mixtures thereof. Even more preferably, the acrylate enrichment step comprises 0 to 2% by weight (preferably 0.01 to 1% by weight; more preferably, 0.05 to 0.1% by weight; most preferably) based on the weight of the acrylate enriching step. comprises 0.07 to 0.08 wt %) of structural units of a multiethylenically unsaturated, acrylate rich stage monomer having at least two ethylenically unsaturated groups per molecule; The polyethylenically unsaturated monomer having at least two ethylenically unsaturated groups per molecule is selected from the group consisting of DVB, ALMA, EGDMA, HDDA and BGDMA. Even more preferably, the acrylate enrichment step comprises 0 to 2% by weight (preferably 0.01 to 1% by weight; more preferably, 0.05 to 0.1% by weight; most preferably) based on the weight of the acrylate enriching step. comprises 0.07 to 0.08 wt %) of structural units of a multiethylenically unsaturated, acrylate rich stage monomer having at least two ethylenically unsaturated groups per molecule; Multiethylenically unsaturated monomers having at least two ethylenically unsaturated groups per molecule include ALMA. Most preferably, the acrylate enrichment step comprises 0 to 2 wt% (preferably 0.01 to 1 wt%; more preferably, 0.05 to 0.1 wt%; most preferably, 0 to 2 wt%, based on the weight of the acrylate enrichment step , 0.07 to 0.08% by weight) of structural units of a multiethylenically unsaturated, acrylate rich stage monomer having at least two ethylenically unsaturated groups per molecule; A polyethylenically unsaturated monomer having at least two ethylenically unsaturated groups per molecule is ALMA.

Preferably, the multistage polymer of the present invention comprises a carbosiloxane enrichment stage. More preferably, the multistage polymer of the present invention comprises 5 to 40% by weight (preferably 10 to 35% by weight; more preferably 15 to 30% by weight; most preferably, based on the weight of the multistage polymer; 18 to 25% by weight) of carbosiloxane enrichment. Most preferably, the multistage polymer of the present invention comprises 5 to 40% by weight (preferably 10 to 35% by weight; more preferably 15 to 30% by weight; preferably, 18% by weight, based on the weight of the multistage polymer; to 25% by weight) of carbosiloxane enrichment; The carbosiloxane enrichment stage contains 0 to 90% by weight (preferably less than 10 to 50% by weight; more preferably 12.5 to 30% by weight; even more preferably 15 to 90% by weight based on the weight of the carbosiloxane enrichment stage. 25% by weight; most preferably, 19 to 21% by weight) of structural units of vinyl monomer; and 10 to 100% by weight (preferably greater than 50 to 90% by weight; more preferably 70 to 87.5% by weight; even more preferably 75 to 85% by weight; most Preferably, 79 to 81% by weight) of structural units of the second carbosiloxane monomer of formula (I).

Preferably, the carbosiloxane enrichment stage comprises 0 to 90% by weight (preferably less than 10 to 50% by weight; more preferably, 12.5 to 30% by weight; even more preferably) based on the weight of the carbosiloxane enriching stage. 15 to 25% by weight; most preferably 19 to 21% by weight) of structural units of vinyl monomers. More preferably, the carbosiloxane enrichment step comprises 0 to 90% by weight (preferably less than 10 to 50% by weight; more preferably, 12.5 to 30% by weight; even more preferred) based on the weight of the carbosiloxane enriching step. preferably, 15 to 25% by weight; most preferably, 19 to 21% by weight) of structural units of vinyl monomer; The vinyl monomer contains at least one radically polymerizable vinyl group per molecule. Even more preferably, the carbosiloxane enrichment stage comprises 0 to 90% by weight (preferably less than 10 to 50% by weight; more preferably 12.5 to 30% by weight; more preferably, based on the weight of the carbosiloxane enriching stage; preferably, 15 to 25% by weight; most preferably, 19 to 21% by weight) of structural units of vinyl monomer; Vinyl monomers include C _1-3 alkyl acrylates (eg, methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate); C _1-3 alkyl methacrylates (eg, methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate); Monoethylenically unsaturated carboxylic acids (e.g., (meth)acrylic acid, (meth)acryloxypropionic acid, itaconic acid, aconitic acid, maleic acid, maleic anhydride, fumaric acid, crotonic acid, citraconic acid, maleic anhydride, mono methyl maleate, monomethyl fumarate, monomethyl itaconate); C _4-20 alkyl acrylates (eg, n-butyl acrylate, isobutyl acrylate, tert-butyl acrylate, n-hexyl acrylate, cyclohexyl acrylate, 2-ethylhexyl acrylate, octyl acrylate , lauryl acrylate, stearyl acrylate); C _4-20 alkyl methacrylates (eg, n-butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, n-hexyl methacrylate, cyclohexyl methacrylate, 2-ethylhexyl methacrylate, octyl methacrylate, lauryl methacrylate, stearyl methacrylate); aromatic vinyl monomers (eg, styrene, vinyl toluene, benzyl acrylate, benzyl methacrylate, phenoxyethyl acrylate, phenoxyethyl methacrylate, vinyl pyrrolidone); and mixtures thereof. Even more preferably, the carbosiloxane enrichment stage comprises 0 to 90% by weight (preferably less than 10 to 50% by weight; more preferably 12.5 to 30% by weight; more preferably, based on the weight of the carbosiloxane enriching stage; preferably, 15 to 25% by weight; most preferably, 19 to 21% by weight) of structural units of vinyl monomer; Vinyl monomers include methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl acrylate , isobutyl acrylate, tert-butyl acrylate, n-hexyl acrylate, cyclohexyl acrylate, 2-ethylhexyl acrylate, n-butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, n-hexyl methacrylate, 2-ethylhexyl methacrylate, methacrylic acid and mixtures thereof. Most preferably, the carbosiloxane enrichment step is 0 to 90% by weight (preferably less than 10 to 50% by weight; more preferably, 12.5 to 30% by weight; even more preferred) based on the weight of the carbosiloxane enriching step. preferably, 15 to 25% by weight; most preferably, 19 to 21% by weight) of structural units of vinyl monomer; Vinyl monomers include methyl methacrylate and methacrylic acid.

Preferably, the carbosiloxane enrichment step comprises 10 to 100 wt% (preferably more than 50 to 90 wt%; more preferably 70 to 87.5 wt%; even more preferably) based on the weight of the carbosiloxane enrichment step. contains structural units of the second carbosiloxane monomer of formula (I) of 75 to 85% by weight; most preferably 79 to 81% by weight). More preferably, the carbosiloxane enrichment step comprises 10 to 100 wt% (preferably more than 50 to 90 wt%; more preferably 70 to 87.5 wt%; even more preferred), based on the weight of the carbosiloxane enrichment step preferably 75 to 85% by weight; most preferably 79 to 81% by weight) of structural units of a second carbosiloxane monomer of formula (I), wherein a is 0 to 3 (preferably , 0 to 2; more preferably, 1); d is 0 or 1 (preferably 0); each R ¹ is hydrogen, a C _1-10 alkyl group, and an aryl group (preferably hydrogen and a C _1-10 alkyl group; more preferably, hydrogen and a C _1-4 alkyl group; even more preferably, hydrogen and independently selected from the group consisting of a methyl group; most preferably, a methyl group; each R ² is hydrogen and a C _1-10 alkyl group (preferably hydrogen and a C _1-5 alkyl group; more preferably, hydrogen and a C _1-4 alkyl group; even more preferably, hydrogen and a methyl group; most preferably preferably independently selected from the group consisting of a methyl group); each R ⁸ is an —O—Si(CH ₃ ) ₃ group; Y is selected from the group consisting of formulas (II), (III), and (IV) (preferably (II) or (III); more preferably, (II)); each of R ⁴ and R ⁶ is independently selected from the group consisting of hydrogen and a methyl group (preferably a methyl group); Each of R ³ and R ⁵ is independently a C _1-10 alkylene group (preferably, a C _1-7 alkylene group; more preferably, a C _2-6 alkylene group; even more preferably, a C _3-5 group) an alkylene group, most preferably a C ₃ alkylene group (eg, —CH ₂ —CH ₂ —CH ₂ —); each R ⁷ is independently a C _1-10 alkyl group; b is 0 to 4, and c is 0 or 1. Most preferably, the carbosiloxane enrichment step comprises 10 to 100 wt% (preferably greater than 50 to 90 wt%; more preferably 70 to 87.5 wt%; even more preferred), based on the weight of the carbosiloxane enrichment step, based on the weight of the carbosiloxane enrichment step. preferably 75 to 85% by weight; most preferably 79 to 81% by weight) of a carbosiloxane monomer of formula (I), wherein a is 1; d is 0; each R ¹ is a methyl group; each R ² is a methyl group; Y is formula (II); each R ³ is a C _3-5 alkylene group; each R ⁴ is a methyl group.

Preferably, the personal care formulation of the present invention further comprises a cosmetically acceptable carrier. More preferably, the personal care formulation of the present invention comprises 30 to 92% by weight (preferably 35 to 92% by weight; more preferably 40 to 80% by weight) of a cosmetically acceptable carrier. Most preferably, the personal care formulation of the present invention comprises 30 to 92% by weight (preferably 35 to 92% by weight; more preferably 40 to 80% by weight) of a cosmetically acceptable carrier; The multistage polymer is dispersed in a cosmetically acceptable carrier.

Preferably, the personal care formulation of the present invention comprises 30 to 92% by weight (preferably 35 to 92% by weight; more preferably 40 to 80% by weight) of a cosmetically acceptable carrier; The cosmetically acceptable carrier is selected such that the personal care formulation can be evaporated upon application to the skin of a mammal (preferably human skin).

Preferably, the personal care formulation of the present invention comprises 30 to 92% by weight (preferably 35 to 92% by weight; more preferably 40 to 80% by weight) of a cosmetically acceptable carrier; Cosmetically acceptable carriers include water (eg, deionized distilled water); emulsions (eg, oil-in-water emulsions or water-in-oil emulsions); alcohols (eg, C _1-4 straight or branched chain alcohols such as ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol); glycols (eg, ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, dipropylene glycol, ethoxydiglycol); glycerin; butyl cellosolve; and mixtures thereof. More preferably, the personal care formulation of the present invention comprises 30 to 92% by weight (preferably 35 to 92% by weight; more preferably 40 to 80% by weight) of a cosmetically acceptable carrier; The cosmetically acceptable carrier includes water (preferably at least one of deionized water and distilled water; more preferably, deionized distilled water).

Preferably, the personal care formulation of the present invention further comprises a color component. More preferably, the personal care formulation of the present invention optionally further comprises a color component; The color component is selected from the group consisting of inorganic pigments, organic pigments, aqueous pigment dispersions and mixtures thereof. Even more preferably, the personal care formulation of the present invention further comprises a color component; The color component is Ext. D&C Yellow No. 2, Ext. D&C Violet No. 2, FD&C Red No. 4, FD&C Red No. 40, FD&C yellow No. 5, FD&C yellow No. 6, FD&C Green No. 3, FD&C Blue No. 1, D&C yellow No. 7, D&C yellow No. 8, D&C yellow No. 10, D&C yellow No. 11, D&C Violet No. 2, D&C Red No. 6, D&C Red No. 7, D&C Red No. 17, D&C Red No. 21, D&C Red No. 22, D&C Red No. 27, D&C Red No. 28, D&C Red No. 30, D&C Red No. 31, D&C Red No. 34, D&C Red No. 33, D&C Red No. 36, D&C Green No. 5, D&C Green No. 6, D&C Green No. 8, D&C Blue No. 4, D&C Orange No. 4, D&C Orange No. 5, D&C Orange No. 10, D&C Orange No. 11, D&C Brown No. 1, aluminum powder, annatto, bismuth citrate, bismuth oxychloride, bronze powder, caramel, carmine, β-carotene, chromium hydroxide green, chromium oxide green, copper chlorophyllin, copper powder, dihydro oxyacetone, iron ammonium ferrocyanide, iron ferrocyanide, guanine, iron oxide, manganese violet, mica, silver, titanium dioxide, ultramarine, zinc oxide, and mixtures thereof. Even more preferably, the personal care formulation of the present invention further comprises a color component; The color component includes at least one of iron oxide and titanium dioxide. Most preferably, the personal care formulation of the present invention further comprises a color component; The color component includes a mixture of iron oxide and titanium dioxide.

Preferably, the personal care formulation of the present invention further comprises a color component, wherein the color component is a pigment. More preferably, the personal care formulation of the present invention further comprises a color component, wherein the color component is a pigment, and the pigment is a surface treatment (eg, sodium glycerophosphate, phytic acid (and) sodium hydroxide, PEG- 12 Dimethicone, Dimethicone, Hydrogen Dimethicone, Methicone, Lauroyl Lysine, Hydrogenated Lecithin, Perfluorooctyl Triethoxysilane (and) Polyperfluoromethylisopropyl Ether, Ammonium C _6-16 Purple luoroalkylethyl phosphate). Even more preferably, the personal care formulation of the present invention further comprises a color component; The color component is a pigment; The pigment has a surface treatment, and the surface treatment is formed by treating the pigment with a surface treatment agent selected from the group consisting of alkyl silanes, halogenated phosphonates, halogenated organosilanes, or combinations thereof. Most preferably, the personal care formulation of the present invention further comprises a color component; The color component is a pigment; The pigment has a surface treatment, wherein the surface treatment is a pigment with a surface treatment agent selected from the group consisting of sodium perfluorohexylethylphosphonate, triethoxy caprylylsilane, perfluorooctyltriethoxysilane, and mixtures thereof. formed by processing

Preferably, the personal care formulation of the present invention further comprises a suncare active. More preferably, the personal care formulation of the present invention comprises 0.1% to 70% by weight (preferably 5 to 65% by weight; more preferably 7.5 to 60% by weight; most preferably 10 to 55% by weight) %) of a sun care active. More preferably, the personal care formulation of the present invention comprises 0.1 to 70% by weight (preferably 5 to 65% by weight; more preferably 7.5 to 60% by weight; most preferably 10 to 55% by weight) a sun care active; Suncare actives are UV absorbers. Even more preferably, the personal care formulation of the present invention comprises 0.1 to 70% by weight (preferably, 5 to 65% by weight; more preferably, 7.5 to 60% by weight; most preferably, 10 to 55% by weight) ), which includes a physical blocker (e.g., red petrolatum, titanium dioxide, zinc oxide) and a chemical absorbent (e.g., 1-(4-methoxyphenol)-3-(4- tert-butylphenyl)propane-1,3-dione (INCI: butyl methoxydibenzoylmethane); 2-hydroxy-4-methoxybenzophenone (INCI: benzophenone-3); deoxybenzone; sulisobenzone; Menthyl anthranilate; para-aminobenzoic acid; amyl paradimethylaminobenzoic acid; octyl para-dimethylaminobenzoate; ethyl 4-bis (hydroxypropyl) para-aminobenzoate; polyethylene glycol (PEG-25) para-aminobenzoate Ethyl 4-bis(hydroxy propyl) aminobenzoate; diethanolamine para-methoxycinnamate; 2-ethoxyethyl para-methoxycinnamate; ethylhexyl para-methoxycinnamate; octyl para-methyl Toxycinnamate; Isoamyl para-methoxycinnamate; 2-ethylhexyl-2-cyano-3,3-diphenyl-acrylate; 2-ethylhexyl-2-cyano-3,3-diphenyl- 2-propenoate (INCI: octocrylene); 2-ethylhexyl-2-hydroxybenzoate (INCI: ethylhexyl salicylate); homomentyl salicylate; glyceryl aminobenzoate; triethanolamine salicylate Late; digalloyl trioleate; Lawson with dihydroxyacetone; 2-phenylbenzimidazole-5-sulfonic acid; 4-methylbenzylidine camphor; avobenzone; triazine; benzotriazole; vinyl group-containing amide; cinnamic acid amide; sulfonated benzimidazole); It is an ultraviolet absorber selected from the group consisting of 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate (INCI: homosalate). Even more preferably, the personal care formulation of the present invention comprises 0.1 to 70% by weight (preferably, 5 to 65% by weight; more preferably, 7.5 to 60% by weight; most preferably, 10 to 55% by weight) ), wherein the sun care active is a UV absorber comprising a mixture of UV absorbers. Even more preferably, the personal care formulation of the present invention comprises 0.1 to 70% by weight (preferably, 5 to 65% by weight; more preferably, 7.5 to 60% by weight; most preferably, 10 to 55% by weight) ), wherein the sun care active is 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione; 2-ethylhexyl-2-hydroxybenzoate; 2-ethihexyl-2-cyano-3,3-diphenyl-2-propenoate; A UV absorber that is a mixture of UV absorbers comprising at least one of 2-hydroxy-4-methoxybenzophenone and 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate. Most preferably, the personal care formulation of the present invention comprises 0.1 to 70% by weight (preferably 5 to 65% by weight; more preferably 7.5 to 60% by weight; most preferably 10 to 55% by weight) of a sun care active agent, wherein the sun care active agent is 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione; 2-ethylhexyl-2-hydroxybenzoate; It is a UV absorber that is a mixture of UV absorbers comprising 2-ethyhexyl-2-cyano-3,3-diphenyl-2-propenoate and 2-hydroxy-4-methoxybenzophenone.

Preferably, the personal care formulation of the present invention contains 0 to 20% by weight (preferably 0.5 to 15% by weight; more preferably 1 to 10% by weight; most preferably 2 to 5% by weight). It further includes an SPF booster. Preferably, the SPF booster is not an active ingredient, but is designed to enhance the effectiveness of a sunscreen active present in the formulation. Suitable SPF boosters include, but are not limited to, styrene/acrylate copolymers, sodium bentonite, high purity white sodium bentonite, montmorillonite, hydrogel, nanocrystalline cellulose, or any combination thereof. A particularly preferred styrene/acrylate copolymer for use in the sun care formulations of the present invention is sold under the trade name SunSpheres® by The Dow Chemical Company.

Preferably, the personal care formulation of the present invention optionally further comprises an optional additive. More preferably, the color cosmetic formulation of the present invention further comprises an optional additive, the optional additive being a waterproofing agent, softening agent, preservative, antioxidant, fragrance, moisturizing agent, rheology modifier, aesthetic modifier, vitamin, skin protectant, oil, Emulsifier, surfactant, pearlizer, consistency factor, thickener, super fatting agent, stabilizer, polymer, silicone compound, fat, wax, lecithin, phospholipid, filler, light care powder (light management powder) and particles, and mixtures thereof.

Preferably, the personal care formulation of the present invention has a pH of 4 to 9. More preferably, the personal care formulation of the present invention has a pH of 4.5 to 8.5. Even more preferably, the personal care formulation of the present invention has a pH of 5.0 to 8.0. Most preferably, the personal care formulations of the present invention have a pH of 5.5 to 7.5.

Preferably, the personal care formulation of the present invention is provided in the form of a product selected from the group consisting of creams, aqueous solutions, oils, ointments, pastes, gels, lotions, milks, foams, sticks, and suspensions.

The multistage polymers of the present invention may be prepared by conventional polymerization techniques such as, for example, emulsion polymerization. Preferably, the multistage polymer of the present invention is an emulsion polymer. More preferably, the multistage polymer of the present invention is an emulsion polymer, wherein the acrylate enrichment stage is the first stage of the emulsion polymer and the carbosiloxane enrichment stage is the second stage of the emulsion polymer.

The personal care formulations of the present invention are useful for at least one of improving the appearance and treatment of skin (eg, moisturizing; protecting from the harmful effects of sun exposure) through application to the skin. Preferably, the personal care formulation of the present invention is easily applied to the skin. When provided in the form of a color cosmetic formulation, the personal care formulation of the present invention leaves a distinct, vivid color and remains in place at least throughout the working day and preferably thereafter.

Some embodiments of the present invention will now be described in detail in the following examples .

The monomer abbreviations used in the examples are listed in Table 1 .

Example SC: Multistage Polymer

A 2 liter round bottom flask (equipped with overhead stirrer, thermocouple, condenser, and inlet for addition of monomers and initiator) was charged with deionized water (262.0 g), 50% CAVASOL™ W7 MTL (cyclodextrin from Wacker Fine Chemicals) ( 15.2 g), 31.5% Aerosol ^™ A102 surfactant (20.5 g) (Solvay) and sodium carbonate (3.4 g). The flask contents were stirred and heated to 85°C.

An acrylate rich monomer emulsion was prepared by charging deionized water (294.9 g) and 31.5% Aerosol ^™ A102 surfactant (8.7 g) to a first vessel and setting to stir. Once the surfactant was incorporated into the water, the following monomers were slowly added to the first vessel with constant stirring: BA (182.4 g), BMA (264.5 g), MMA (152.0 g), MAA (9.1 g) and ALMA (0.5). g).

A carbosiloxane rich monomer emulsion was prepared by charging deionized water (76.0 g) and 31.5% Aerosol ^™ A102 surfactant (2.2 g) to a second vessel and setting to stir. Once the surfactant was incorporated into the water, the following monomers were slowly added to the second vessel with continued stirring: MD'M-ALMA (121.6 g), MMA (28.1 g) and MAA (2.3 g). The carbosiloxane rich monomer emulsion was further emulsified using homogenization at 7,000 rpm for 10 minutes.

A cofeed catalyst solution containing sodium persulfate (1.5 g) and deionized water (40.3 g) was prepared.

A cofeed buffer solution containing sodium carbonate (1.5 g) and deionized water (40.3 g) was prepared.

At a reaction set point temperature of 85° C., 34.2 g of the acrylate rich monomer emulsion from the first vessel was charged to the flask contents along with a deionized water rinse (15.2 g). An initiator solution of sodium persulfate (3.4 g) in deionized water (15.2 g) was then added to the flask contents. After the initial polymerization, the remaining amount of the acrylate rich monomer emulsion in the first vessel was co-fed to the flask contents at a rate of 6.05 g/min for 15 minutes and then at 13.01 g/min for 60 minutes. Simultaneously with the cofeed of the acrylate rich monomer emulsion, the cofeed catalyst solution and the cofeed buffer solution were added to the reactor contents over 95 minutes at a rate of 0.44 g/min.

After addition of the acrylate rich monomer emulsion, the carbosiloxane rich monomer emulsion in the second vessel was added to the reactor contents at a rate of 11.51 g/min for 20 minutes. After completion of the various feeds, the contents of the flask were chased to reduce the amount of residual monomer to provide a multistage polymer product.

Examples S1 to S4: Multistage Polymers

A multistage polymer was prepared substantially as described in Example SC , with the acrylate enriched stage monomer and the carbosiloxane enriched stage monomer in each stage described in Table 2 acrylate in each of the multistage polymers of Examples S1 to S4 . Appropriate changes were made to reflect the total weight percent of the enrichment stage and the carbosiloxane enrichment stage.

Polymer properties

The product multistage polymers prepared according to Comparative Example SC and Examples S1 to S4 were subjected to percent solids, pH, average particle size (using a Brookhaven Instruments BI-90 particle size analyzer), and a TA Instruments model 2920 differential scanning calorimeter (DSC) using a differential scanning calorimeter (DSC). The measured glass transition temperature, T _g , was analyzed. The results are provided in Table 3 .

Mechanical properties of pure polymer films

The mechanical properties of the films were evaluated by tensile testing to determine the tensile strength, toughness, and flexibility of the films. A pure polymer film was prepared by casting 20 g of the polymer prepared according to each of Comparative Example SC and Examples S1 to S4 into a 9.4 cm diameter Petri dish. The polymer latex was air dried in an environmental controlled room (72°F, 50% relative humidity) until a dried film was formed. The dried film was then peeled off the Petri dish and cut into three dog bone pieces with a neck portion 0.75 inches long and 0.25 inches wide. The dog bone pieces were then tested in an environmental controlled room (72°F, 50% relative humidity) using an INSTRON 5565 tensile tester at a stretch rate of 10 inches/minute. The results of the tensile tests are provided in Table 4 .

Water repellency and oil repellency (Sebum Repellency)

The water repellency and oil repellency of the film depend on the surface energy. High water repellency and oil repellency over a long period of time are useful in a variety of applications such as architectural coatings and personal care applications (e.g., providing long-lasting active deposition and rub-off resistance benefits in color cosmetics, sunscreens and antifouling products). required in the application. Water repellency and oil repellency can be evaluated by measuring the water contact angle and the oil contact angle from the surface of the film. Specifically, the product multistage polymer prepared according to Comparative Example SC and Examples S1 to S4 was drawn down onto a black plastic chart (available from LENETA P121-16) with a 3 mil or 6 mil doctor blade to film was prepared. The drawn down film was air dried in an environmental controlled room (72° F. and 50% relative humidity) for at least 72 hours. The dried film was then placed in a fog box for at least 48 hours to remove any residual surfactant from the film surface. After treatment in the fog box, the films were air dried for at least 24 hours in an environmental controlled room (72° F. and 50% relative humidity) before measurements were taken. Both water and oil contact angles were measured using a droplet morphology analyzer (Kruss DSA100) approximately 4 and 250 seconds after water or oil droplets were deposited on the substrate. For the oil contact angle measurement, artificial oil solutions having the compositions shown in Table 5 were prepared. The measurement results of the contact angle between water and oil are provided in Table 6 .

Formulation Example G1: General Color Cosmetic Formulation

A color cosmetic formulation having a general formulation according to formulation Example G1 described in Table 7 was prepared. Add Phase A ingredients to a beaker and mix until uniform. The Phase B ingredients were then added slowly to the beaker contents with mixing until uniform. The Phase C ingredients were combined in a separate container with mixing until uniform, then slowly added with mixing to the contents of the beaker. Then, the phase D test polymer was Add slowly to the beaker contents with mixing until uniform. The Phase E component was then added to the beaker contents with mixing until uniform. The Phase F component was then added to the beaker contents. The beaker contents were then mixed until uniform to provide a product color cosmetic formulation.

Comparative Examples C1 to C3 and Examples 1 to 4: Color cosmetic formulations

Color cosmetic formulations of Comparative Examples C1 to C3 and Examples 1 to 4 were prepared according to Formulation Example G1 with different test polymers as described in Table 8 .

wear resistance

The color cosmetic formulations prepared according to Comparative Examples C1 to C3 and Examples 1 to 4 were respectively coated on white vinyl charts (available from Leneta) using a Doctor Blade film applicator at intervals of 6 mils (0.1524 mm). and allowed to dry at 22° C. for at least 24 hours. The color measurements of each sample were then taken using a color spectrophotometer from BYK-Gardner. The abrasion resistance of the deposited film of the color cosmetic formulation is characterized by the change (ΔE) before and after abrasion with a pre-cut bath towel (55 mm×45 mm). A bath towel was fixed to a mobile robot part that moved back and forth periodically at a constant speed. The film was abraded with a bath towel by 3 abrasion cycles under a pressure of approximately 600 Pa, each abrasion cycle lasting 6 seconds. Measurements were taken from 10 points on each deposited film. The average of ten measurements from each film is provided in Table 8 .

Claims (10)

A personal care formulation comprising a multistage polymer, wherein the multistage polymer comprises:
(a) an acrylate rich stage, comprising:
63 to 99.9% by weight, based on the weight of the acrylate-rich stage, of monoethylenically unsaturated nonionic, structural units of an acrylate-rich stage monomer, selected from the group consisting of C _1-22 alkyl (meth)acrylates and mixtures thereof. ;
0.1 to 25% by weight, based on the weight of the acrylate enrichment step, of a first carbosiloxane monomer of formula (I);

0 to 10% by weight, based on the weight of the acrylate enrichment stage, of monoethylenically unsaturated carboxylic acid, structural units of the acrylate enrichment stage monomer; and
an acrylate enrichment step comprising structural units of a multiethylenically unsaturated, acrylate enriching stage monomer having at least two ethylenically unsaturated groups per molecule of 0 to 2% by weight, based on the weight of the acrylate enrichment stage; and
(b) a carbosiloxane rich stage,
0 to 90% by weight of structural units of vinyl monomer, based on the weight of the carbosiloxane enrichment stage; and
a carbosiloxane enrichment step comprising 10 to 100% by weight, based on the weight of the carbosiloxane enrichment step, structural units of a second carbosiloxane monomer of formula (I);

wherein a is 0 to 3; d is 0 or 1; each R ¹ is independently selected from the group consisting of hydrogen, a C _1-10 alkyl group, and an aryl group; each R ² is independently selected from the group consisting of hydrogen and a C _1-10 alkyl group; each R ⁸ is an —O—Si(CH ₃ ) ₃ group; Y is selected from the group consisting of formulas (II), (III), and (IV),

wherein each R ⁴ and R ⁶ is independently selected from the group consisting of hydrogen and a methyl group; each of R ³ and R ⁵ is independently a C _1-10 alkylene group; each R ⁷ is independently a C _1-10 alkyl group; b is 0 to 4, c is 0 or 1;
wherein the first carbosiloxane monomer of formula (I) and the second carbosiloxane monomer of formula (I) are the same or different. According to claim 1,
the monoethylenically unsaturated nonionic, acrylate rich stage monomer is selected from the group consisting of mixtures of C _1-4 alkyl (meth)acrylates;
the monoethylenically unsaturated carboxylic acid, acrylate-rich stage monomer is selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, crotonic acid, and mixtures thereof;
The multiethylenically unsaturated, acrylate rich stage monomer having at least two ethylenically unsaturated groups per molecule is a divinylaromatic compound, di-(meth)acrylate ester, tri-(meth)acrylate ester, tetra-(methacrylic ester), di-allyl ether, tri-allyl ether, tetra-allyl ether, di-allyl ester, tri-allyl ester, tetra-allyl ester, allyl (meth)acrylate, and mixtures thereof; ;
the vinyl monomer is selected from the group consisting of a mixture of methacrylic acid and methyl methacrylate;
the first carbosiloxane monomer and the second carbosiloxane monomer are the same;
a is 1; each R ¹ is a methyl group; each R ² is a methyl group; Y is formula (II); each R ³ is a C _3-5 alkylene group; and each R ⁴ is a methyl group. 3. The personal care formulation of claim 2, further comprising a cosmetically acceptable carrier. 4. The personal care formulation of claim 3, wherein the cosmetically acceptable carrier comprises water. 5. The personal care formulation of claim 4, further comprising a color component. 6. The method of claim 5, wherein the color component is Ext. D&C Yellow No. 2, Ext. D&C Violet No. 2, FD&C Red No. 4, FD&C Red No. 40, FD&C yellow No. 5, FD&C yellow No. 6, FD&C Green No. 3, FD&C Blue No. 1, D&C yellow No. 7, D&C yellow No. 8, D&C yellow No. 10, D&C yellow No. 11, D&C Violet No. 2, D&C Red No. 6, D&C Red No. 7, D&C Red No. 17, D&C Red No. 21, D&C Red No. 22, D&C Red No. 27, D&C Red No. 28, D&C Red No. 30, D&C Red No. 31, D&C Red No. 34, D&C Red No. 33, D&C Red No. 36, D&C Green No. 5, D&C Green No. 6, D&C Green No. 8, D&C Blue No. 4, D&C Orange No. 4, D&C Orange No. 5, D&C Orange No. 10, D&C Orange No. 11, D&C Brown No. 1, aluminum powder, annatto, bismuth citrate, bismuth oxychloride, bronze powder, caramel, carmine, β-carotene, chromium hydroxide green, chromium oxide green, copper chlorophyllin, copper powder, dihydro A personal care formulation selected from the group consisting of oxyacetone, iron ammonium ferrocyanide, iron ferrocyanide, guanine, iron oxide, manganese violet, mica, silver, titanium dioxide, ultramarine, zinc oxide, and mixtures thereof. 6. The personal care formulation of claim 5, wherein the color component comprises at least one iron oxide. 4. The personal care formulation of claim 3, further comprising a suncare active. 9. The personal care formulation of claim 8, wherein the sun care active is a UV absorber selected from the group consisting of a physical blocker and a chemical absorbent. 10. The method of claim 9, wherein the sun care active is red petrolatum; titanium dioxide; zinc oxide; 1-(4-methoxyphenol)-3-(4-tert-butylphenyl)propane-1,3-dione; 2-hydroxy-4-methoxybenzophenone; deoxybenzone; sullysobenzone; menthyl anthranilate; para-aminobenzoic acid; amyl paradimethylaminobenzoic acid; octyl para-dimethylaminobenzoate; ethyl 4-bis (hydroxypropyl) para-aminobenzoate; polyethylene glycol (PEG-25) para-aminobenzoate; ethyl 4-bis (hydroxypropyl) aminobenzoate; diethanolamine para-methyloxycinnamate; 2-ethoxyethyl para-methoxycinnamate; ethylhexyl para-methoxycinnamate; octyl para-methoxycinnamate; isoamyl para-methoxycinnamate; 2-ethylhexyl-2-cyano-3,3-diphenyl-acrylate; 2-ethylhexyl-2-cyano-3,3-diphenyl-2-propenoate; 2-ethylhexyl-2-hydroxybenzoate; homomenthyl salicylate; glyceryl aminobenzoate; triethanolamine salicylate; digaloyl trioleate; Lawson with dihydroxyacetone; 2-phenylbenzimidazole-5-sulfonic acid; 4-methylbenzylidine camphor; avobenzone; triazine; benzotriazole; vinyl group-containing amides; cinnamic acid amide; sulfonated benzimidazoles); A personal care formulation, wherein the UV absorber is selected from the group consisting of 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate, and mixtures thereof.